It was made of win, although made with a couple of things I wanted to use up
Very green celery finely chopped (including leaves but no manky bits) to cover the bottom of a lightly greased pyrex dish; a generous sprinkling of herbes de provence; a drained small tin of red salmon (boneless & skinless) roughly spread over the other layers; a generous grind of pepper; a couple of raw spuds per person sliced thinly and roughly spread over the fish; mushroom soup for one person carefully poured over the lot (it trickles through the layers). Leave in a hot oven until the potatoes are tender (about an hour, could be less if you precooked the potatoes and maybe the celery too).